/*
 * $URL: https://dnsprobe.googlecode.com/svn/trunk/dnsprobe/src/dnsprobe/gui/FileChooser.java $
 * 
 * Copyright (c) 2009, Anonymous
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Anonymous nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY ANONYMOUS ''AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ANONYMOUS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */

package dnsprobe.gui;

import java.io.File;

import static dnsprobe.Constants.GUI_DIALOG_FILE_EXISTS_TITLE;
import static dnsprobe.Constants.GUI_DIALOG_FILE_EXISTS_TEXT;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;

/**
 * Erweitert JFileChooser um eine "Datei ueberschreiben?"-Dialogboxe
 * 
 * @author BerndBernhardson
 * @author anon004
 * @author snoop
 * @version $Id: FileChooser.java 110 2009-07-01 17:19:02Z bernhardson@gmx.net $
 *
 */
public class FileChooser extends JFileChooser
{
	private static final long serialVersionUID = 1L;

	/**
	 * Prueft vor dem Export ob die Datei bereits existiert und fragt
	 * den User ob sie ueberschreiben werden soll
	 */
	@Override
	public void approveSelection()
	{
		final File target;
		
		target = getSelectedFile();
		
		if(getDialogType() == SAVE_DIALOG && target != null && target.exists())
		{
			final int result;
			
			result = JOptionPane.showConfirmDialog(
					this, 
					GUI_DIALOG_FILE_EXISTS_TEXT, 
					GUI_DIALOG_FILE_EXISTS_TITLE, 
					JOptionPane.YES_OPTION, 
					JOptionPane.QUESTION_MESSAGE
			);
			
			if(result == JOptionPane.NO_OPTION)
			{
				return;
			}
		}
		
		super.approveSelection();
		return;
	}
}
